I received an email from Adsense one time suggesting that I increase the number of adsense ads on my page. I already have close to the max. I thought I had read that having fewer ads increases the value of the ones you do show. Is that true, has someone experienced this before?
The value of the ads will stay constant no matter how many ads you show on your webpage. I would place more on your website as you are losing revenue that you could easily take in. If you are still unsure test it out for yourself and see if the CPC changes if you add or decrease ads on your page.
Yeah I agree to tjsocr22. It's also possible that low-paying ads will be the one showing on your page because of too many ads.
That's interesting, I didn't read tjsocr22 comment the same way. Wasn't he saying have as many ads as possible, there was no mention of low paying ads. However, that was the concern I had read somewhere in the past, that if you have to many ads, then Google just shows low paying ads and so you make less money.
I think the best placement is important. According to me left top side is the best. And there is nothing like Cpc increases if less number of adsense block are placed on site.